doesn't count as 'undefeated'
un-de-feat-ed adj- not having been defeated:
Don't waste your time, Kin.
If you try to sieve through his teenage angst trying to find kernels of anything useful, you're apt to bring on the headache.
This is cute because I'm not angsty at all. Well, I mean, I am IRL. But it literally has nothing to do with my presence or behaviour on message forums.
But good job using the first mundane cliche you could think of, even if you don't even know what the word's literal definition is.